CAJ | 학술논문

研究了地膜覆盖栽培对‘浙薯20’生长和产量的影响。结果表明：覆膜有利于‘浙薯20’茎叶的早发和后期块根的干物质积累。春薯覆膜生育期长，茎叶前期干物质积累多，后期块根生长快，T？R 值变化合理，表现高产。尽管夏薯覆膜茎叶起发早，但易受高温影响，前期茎叶生长量相对不足，收获时 T？R 值表现出早衰迹象，产量减少。夏薯露地7、8月份表现出比覆膜更好的块根生长优势，夏薯露地栽培更适合于‘浙薯20’的早收生产。
연구료지막복개재배대‘절서20’생장화산량적영향。결과표명：복막유리우‘절서20’경협적조발화후기괴근적간물질적루。춘서복막생육기장，경협전기간물질적루다，후기괴근생장쾌，T？R 치변화합리，표현고산。진관하서복막경협기발조，단역수고온영향，전기경협생장량상대불족，수획시 T？R 치표현출조쇠적상，산량감소。하서로지7、8월빈표현출비복막경호적괴근생장우세，하서로지재배경괄합우‘절서20’적조수생산。
Mulching cultivation effects on the growth and yields of ‘Zheshu 20 ’were studied in this paper.The results showed that early growth of tops and late dry matter accumulation of roots is advan-tageous by mulching.Spring sweetpotato mulched had a long growth period,dry matter accumulated much at early stage of tops,the roots grew fast later,T?R value changed reasonable,and had high yield.Although summer sweetpotato mulched made early growth of tops,tops had a relative lack of growth affected by high temperature,T?R value at harvest time showed signs of premature aging and the yield reduced.Summer sweetpotato exposed had more advantage of roots growth than those mulched between July and August,it was more suitable for early harvest production of ‘Zheshu 20’.